Can't help you with (only one) 700 MHz SL49P without any heatsink I guess?

QAK9 should also work.

I am still looking for these CPU's. I've only managed to source 1 out of the 4 I need because I got lucky with a eBay listing, they unfortunately did not have more.

Update on this, now have 3 out of four 900MHz CPU's installed. If anybody has just one SL4XY they'd be willing to part ways with I'd be willing to pay a pretty penny for it. It would complete the CPU side of my SGI 540 Visual Workstation.

Endgame of what I'm aiming for:
- 4x 900MHz Pentium III Xeons (Currently 3/4)
- 2GB Proprietary SGI SDRAM (Accomplished)
- Sound Blaster Live! 5.1 Platinum (Can transplant from other machines)
- Some graphics card that works with the weird firmware of the SGI 540 (currently testing options)
- SD1100 Serial Digital Video Interface Card (One sold on eBay recently that I missed, I have a feeling I will be waiting a long time before I see another)
- Blu-ray optical drive with sata to IDE converter
- Internal Superdisk drive (saw some external SGI Superdisk drives on eBay that could be a good source for a internal drive colored black)
- SATA Raid controller (Finding something that is bootable will likely be extremely hard if not impossible so I might be stuck with SCSI / IDE)
- If the SATA Raid controller works out I want two SSD's in RAID0 for the system
- SGI Gigabit Ethernet Card
- SGI 1600SW or SGI CRT Monitor
- Accompanying USB SGI Keyboard and Mouse

Same problem here: I own 5 of the 2.8V 900MHz 2MB CPUs, but need a fourth sixth one to complete a HP Netserver currently running 6x 700 MHz 1MB.
I did not find a single affordable one during the last 10 years.

eisapc wrote on 2026-02-06, 11:51:

Same problem here: I own 5 of the 2.8V 900MHz 2MB CPUs, but need a fourth one to complete a HP Netserver currently running 6x 700 MHz 1MB.
I did not find a single affordable one during the last 10 years.

Well if you ever want to part ways with one of the 900MHz 2.8v PIII Xeon's I'm able to do $250 since I really really want to finish my SGI 540's CPU's.

I haven't seen a positive hit on my ePay searches in YEARS.

I have four of them, but I want to build them into a Supermicro S2QR6 build. (I need a chassis for it)

Hells bells, i'm having trouble getting P-PRO OD chips for my 6x6 without spending $500 a chip.

I will go through my box of processors and check if I have a stray 900/100/2m/2.8 cpu.

I remember reading that the SL4XY has a problem before production week 14 2000. Random freezes on CPU load. Anyone more about it?
Im trying to find the site again. Was from IBM a recall.

First I've heard about it.

I know my chips are good, I ran them for years as a home router. 😀

Id be interested to see what you find.

found it again:
https://www.ibm.com/support/pages/intel-penti … rce=chatgpt.com

Nooflebot wrote on 2026-02-06, 10:18:

Update on this, now have 3 out of four 900MHz CPU's installed. If anybody has just one SL4XY they'd be willing to part ways with […]
Show full quote

Update on this, now have 3 out of four 900MHz CPU's installed. If anybody has just one SL4XY they'd be willing to part ways with I'd be willing to pay a pretty penny for it. It would complete the CPU side of my SGI 540 Visual Workstation.

Endgame of what I'm aiming for:
- 4x 900MHz Pentium III Xeons (Currently 3/4)
- 2GB Proprietary SGI SDRAM (Accomplished)
- Sound Blaster Live! 5.1 Platinum (Can transplant from other machines)
- Some graphics card that works with the weird firmware of the SGI 540 (currently testing options)
- SD1100 Serial Digital Video Interface Card (One sold on eBay recently that I missed, I have a feeling I will be waiting a long time before I see another)
- Blu-ray optical drive with sata to IDE converter
- Internal Superdisk drive (saw some external SGI Superdisk drives on eBay that could be a good source for a internal drive colored black)
- SATA Raid controller (Finding something that is bootable will likely be extremely hard if not impossible so I might be stuck with SCSI / IDE)
- If the SATA Raid controller works out I want two SSD's in RAID0 for the system
- SGI Gigabit Ethernet Card
- SGI 1600SW or SGI CRT Monitor
- Accompanying USB SGI Keyboard and Mouse

Here ya go, shows in stock: https://serverworlds.com/hp-188594-001-xeon-9 … kit-222627-b21/

I've bought other stuff from this company before, they're legit.

FWIW, I have a Supermicro S2DGU with a pair of these and a 3DFX Voodoo3500 laying around here. Great quake player!

^
I don't know if they're 2.8V or 5/12....but might be worth messaging.

Twisted Six wrote on 2026-02-22, 17:31:

Here ya go, shows in stock: https://serverworlds.com/hp-188594-001-xeon-9 … kit-222627-b21/

I've bought other stuff from this company before, they're legit.

FWIW, I have a Supermicro S2DGU with a pair of these and a 3DFX Voodoo3500 laying around here. Great quake player!

99.999% of all OEM cpus are 5/12v. These are no exception.

The S2DGU is a very nice board, grats BTW. 😀

luckybob wrote on 2026-02-22, 22:48:

99.999% of all OEM cpus are 5/12v. These are no exception.

The S2DGU is a very nice board, grats BTW. 😀

The reason I posted the note under my initial post; I wasn't sure as the listing didn't say. You're probably right or they'd probably be 'out of stock' as well....may still be worth sending an email asking. Stranger things have happened.

My pair have those same heatsinks on them, they are 2.8v...in the infamous S2DGU.

the in stock are SL4XZ, i bought a SL4XY on ebay last week . Very expensive..

Twisted Six wrote on Yesterday, 00:13:

The reason I posted the note under my initial post; I wasn't sure as the listing didn't say. You're probably right or they'd pr […]
Show full quote

luckybob wrote on 2026-02-22, 22:48:

99.999% of all OEM cpus are 5/12v. These are no exception.

The S2DGU is a very nice board, grats BTW. 😀

The reason I posted the note under my initial post; I wasn't sure as the listing didn't say. You're probably right or they'd probably be 'out of stock' as well....may still be worth sending an email asking. Stranger things have happened.

My pair have those same heatsinks on them, they are 2.8v...in the infamous S2DGU.

I was wondering why the setup felt so familiar, now I know 🤣

PcBytes wrote on Yesterday, 13:44:

Twisted Six wrote on Yesterday, 00:13:

The reason I posted the note under my initial post; I wasn't sure as the listing didn't say. You're probably right or they'd pr […]
Show full quote

luckybob wrote on 2026-02-22, 22:48:

99.999% of all OEM cpus are 5/12v. These are no exception.

The S2DGU is a very nice board, grats BTW. 😀

The reason I posted the note under my initial post; I wasn't sure as the listing didn't say. You're probably right or they'd probably be 'out of stock' as well....may still be worth sending an email asking. Stranger things have happened.

My pair have those same heatsinks on them, they are 2.8v...in the infamous S2DGU.

I was wondering why the setup felt so familiar, now I know 🤣

Something tells me you go by another screen name on another forum we frequent. 😉

I was looking through my ePay saved searches and I saw these pics:

it should be pretty obvious which cpu has the internal voltage regulator.

luckybob wrote on 2026-02-22, 22:48:

Twisted Six wrote on 2026-02-22, 17:31:

Here ya go, shows in stock: https://serverworlds.com/hp-188594-001-xeon-9 … kit-222627-b21/

I've bought other stuff from this company before, they're legit.

FWIW, I have a Supermicro S2DGU with a pair of these and a 3DFX Voodoo3500 laying around here. Great quake player!

99.999% of all OEM cpus are 5/12v. These are no exception.

The S2DGU is a very nice board, grats BTW. 😀

Just a FWIW, I got your PM about the PPro. I guess I'm too much of a noob, I can not send a private message. Hopefully you'll get the notification I quoted you...if for no other reason so you don't think I was ignoring you.